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Full-Text Articles in Engineering
Transformation Of Phosphorus In Highway Runoff Management Systems, David B. Pearce
Transformation Of Phosphorus In Highway Runoff Management Systems, David B. Pearce
Retrospective Theses and Dissertations
The operation and maintenance of highways contributes a variety of pollutants to surface and subsurface waters. Solids, heavy metals, nutrients, oil and grease, pesticides and bacteria can all be associated with highway runoff. Although the full extent of the effect of all these runoff constituents upon the quality of surrounding waters is not well defined, this study will mainly concentrate on nutrient contaminants (essentially phosphorus). The last decade has seen increasing efforts in research and development to abate contaminant discharges from highway runoff using a number of treatment facilities such as swale and detention/retention ponds. An evaluation of the effectiveness …
Wastewater Characterization And Treatability For Aneastern Coal Slurry, Mark J. Flint
Wastewater Characterization And Treatability For Aneastern Coal Slurry, Mark J. Flint
Retrospective Theses and Dissertations
A complete wastewater characterization study was performed on an eastern Kentucky coal slurry after a 10-day circulation period in a 40 foot (12.2 m) pilot-scale pipeline. The resulting wastewater was settled and decanted for additional lime and alum treatability studies. Easter coal slurries were characterized by high TDS, conductivity, sulfates and iron. Significant concentrations of a number of trace metals were also found; however, organics were very low. Wastewater quality varied considerably among several experiments and was presumed to be influenced by different properties of the coal and the addition of a corrosion inhibitor. The major treatment concern was removal …
Transformation Of Nitrogen In Highway Runoff Management Systems, Robert D. Tolbert
Transformation Of Nitrogen In Highway Runoff Management Systems, Robert D. Tolbert
Retrospective Theses and Dissertations
The operation and maintenance of highways contributes a variety of pollutants to surface and subsurface waters. Solids, heavy metals, nutrients, oil and grease, pesticides and bacteria can all be associated with highway runoff. Although the full extent of the effect of all of these runoff constituents upon the quality of surrounding waters is not well defined, this study will mainly concentrate on nutrient contaminants (essentially nitrogen). The last decade has seen increasing efforts in research and development to abate contaminant discharges from highway runoff using a number of treatment facilities such as retention/detention basins, swales and wetland systems. An evaluation …